Use this dialog to specify the options for flattening an unflattened last.
- Select one of the following as the Last type:
- Use the slider to specify the Average piece thickness.The corresponding value is displayed. Alternatively, enter a value; the slider is adjusted to reflect the value you entered.
Flattening is created by offsetting the surface of the side of the last by this margin.
- In the Flatten section, select one of the following:
- Each half separately
- Merge two halves at toe
Each half separately places the inner and outer halves separately, using the selected symmetry option. Select Rotate halves and Make both halves same as as appropriate.
- Rotate halves to maintain heel height places the outer/inner last halves separately by maintaining heel height
- Make both halves same as controls the shape of the two halves of the flattening. Specify the control by selecting one of the following:
Inside uses-flattening of the side surface for both sides.
Outside uses outside flattening of the side surface for both sides.
Average uses an average of both sides.
Merge two halves at toe merges the two sides at the toe. This will make the centre-line straight between the vamp point and the toe point, merging the two halves at a common toe point.
- Specify the direction the toe is pointing after flattening using Position toe to:
Right positions the toe so that it is pointing towards the right after flattening.
Left positions the toe so that it is pointing towards the left after flattening.
- Position inner shell lets you specify the position of the inner shell after flattening:
Above positions the inner shell above the centre-line after flattening.
Below positions the inner shell below the centre-line after flattening.
The parameter files contains the parameters to be used to create flattening. If no selection is made, flattening is controlled by the parameters that are stored in the Default parameter file that is stored in:
It is possible to change these parameters, but making a change will affect the flattening process for every last you create.
- Click OK to save the changes and flatten the last.
When you flatten an offset concept last, the flattening that is displayed will be of the confirmed size that is useful for pattern engineering.
When you sketch lines in 3D on the offset last, they will be automatically mapped to the confirmed last and flattened accordingly.
Alignment of the last
Use the fourth page of the Last Identification Wizard to adjust the alignment of the last. The original alignment of the last is displayed as wireframe. Entering new values or using the sliders to make adjustments, modifies the model.
- Use the slider to Swivel the last across its length, as shown by the green arrow on the dialog. Alternatively, enter an angle of rotation in the box.
- Use the slider to adjust the Toe Spring, as shown by the blue arrow on the dialog . Alternatively, enter a value in the box. If you use the slider, the value in the box will change automatically.
- Use the slider to adjust the Heel Height, represented by the red arrow on the dialog. Alternatively, enter a height in the box. If you use the slider, the value in the box will change automatically.
- Adjusting the Toe Spring will result in a change to the Heel Height. Similarly, adjusting the Heel Height will affect the Toe Spring.
- Click one of the following buttons:
Cancel to finish the Last Identification Wizard without making any changes
Use the Last Editing dialog to assign values and select options associated with the different parameters of a last.
- Enter the values for the following parameters. Alternatively, use the up and down arrows to set the value.
- Stick length to specify the length of the last, measured using projection on the ground.
- Toe Spring to specify the height of the point from the ground.
- Insole length to specify the length of the last measured along the bottom surface.
- Heel height to specify the height of the heel bottom point from the ground.
- Girth to specify the perimeter of the cross-section taken at the girth plane.
- Use the following buttons to display the options associated with the different last parameters:
The graphic in the dialog changes to reflect the parameter you have selected.
- Select Undo the previous operation in the last editing form. Click Redoto cancel the last Undo.
- Use Restore to reset values to the original settings for the Last Editing dialog for the model.
- Click OK to accept the changes and close the dialog.
Last editing – Toe spring
Choose a Toe Spring option to specify the method used to bend the last.
Select one of the following options:
From vamp to bend the front portion of the last from a plane parallel to the girth plane and passing through the vamp point.
From girth to bend the front portion of the last from the girth plane, so that the toe point is raised or lowered.
If the plane parallel to the girth plane and touching the vamp point touches the ground behind the point where the last touches the ground, the option is locked to From girth.
Last editing – Heel height
Use this dialog to change the heel height by bending the portion of the last behind the girth plane.
- Use the Heel seat length slider to move a semi-transparent plane to change the portion between this plane and the girth plane. Moving the slider to change the heel seat length changes the heel height. This is reflected in the Heel Height value that is displayed.
- Click to lock the Stick length, so that the heel height changes without changing stick length.
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Editing the flattened outlines does not just change the curve but alters the flattening mapping (that is the whole area enclosed by the curve).
- Click(Mean flattening flyout) to display theUser-defined Flattening dialog.
- Use one of the following methods to define the flattening:
Advanced Last Editing
Wireframe modelling tools.
Surface modelling tools.
Solid modelling tools.
- Click a button on the Advanced Tools toolbar to display the relevant modelling toolbar.
- Use the toolbar to make changes to the model.
When the changes have been made, click to return to ShoeMaker mode
Merging style-line curves
Controlling the merging of style-lines
The merging of the curves is controlled by variables that are stored in the powershape.confile. By changing the values assigned to the following variables, you can control the way the curves are merged:
This variable defines the distance on either side of a sketched curve, that is to be used to automatically detect the curve for merging. This is equivalent to hit radius.
This variable defines the minimum overlapping length that is needed to ensure that curve will be considered for merging.
This variable defines the minimum angle formed in overlapping area that is needed to ensure that the curve will be considered for merging.
This variable defines the maximum distance between two curves in the middle portion of the overlapping zone.
This variable defines the length of the finishing strokes that are used to refine the rough sketch. The variable will be in the range of 0 >1